Plumbing Pipes, Hoses & Fittings

Spa & Pool Plumbing Pipes, Hoses, Manifolds and Fittings

To assist in pipe sizes, the following list provides the physical measurements to identify the correct pipe size.

These measurements are of the EXTERNAL diameter of the pipe or hose (and spigot fittings, or internal diameter of socket fittings):

1/2" / 15mm            -  21.4mm               
3/4" / 20mm            -  26.8mm
1" / 25mm                 -  33.5mm
1.5" / 40mm             -  48.4mm
2" / 50mm                 -  60.5mm
2.5" (not 65mm)       -  73mm

These measurements are of the INTERNAL diameter of TUBING only:

3/8" / 9mm               -  9mm
3/4" / 19mm             -  19mm

External diameter of the barb fittings used with tubing is generally slightly larger than the bore of the tubing to ensure a tight fit.



Waterway 3/8" Barb x 1/4" Barb Reducing Coupling

SKU: ww425-4020

Barbed reducing coupling 3/8" to 1/4". Commonly used with ozone systems utilising 1/4" tubing / fittings to connect to either jet jenturi systems or Waterway Venturi Injectors and others. ...

40 In Stock

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Waterway 3/8"barb x 4 Port 1.5" Spigot Dead End Manifold

SKU: ww672-4610

Waterway 3/8" barb x 4 ports manifold with 1.5" spigot x dead end. Can be coupled to 10 and 16 port manifolds. ...

15 In Stock

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Waterway 4 port 3/8" barbed manifold 1"S x 1"Spg

SKU: ww672-0400

Waterway 4 port 3/8" / 9mm barb manifold. 1" / 25mm socket x 1" spigot for easy coupling to additional manifold sections ...

169 In Stock

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Waterway 50mm / 2" Spigot x Spigot 90 degree Elbow

SKU: ww411-2100

Waterway 2" spigot x 2" spigot 90 degree elbow. Perfect for use from pump unions or isolation valves when coupling with manifolds or other 2" socket fittings. ...

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Waterway Air Spring Check Valve 1.5" sockets 1/4lb spring

SKU: ww600-8140

High quality, positive seal spring check valve designed for spa air blower loops 40mm Sockets both ends ...

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Waterway All-In-One Air Blower Check and Drain Valve

SKU: ww600-2900NB

The best all-in-one air blower protection check valve available! Waterway 1.5" / 40mm air blower check valve assembly with built in drain valve. Install horizontally in the air blower loop plumbing If w...

44 In Stock

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Waterway Drain/Fill Valve 3/4" barb

SKU: ww400-2100

Waterway Drain/Fill valve assembly with 3/4" barb - suits 3/4"clear vinyl tubing USA thread - requires special quick connect adaptor if connecting to a garden hose. For fast draining the centre green section...

7 In Stock

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Waterway dual 3/8" barb x 1/2" Spg adaptor

SKU: ww425-0200

Waterway 1/2" / 15mm Spigot x two 3/8" / 9mm barb adaptor - can be used with any air venturi control or fitting with 1/2" / 15mm socket....

2 In Stock

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Waterway Lo-Pro Spa Floor Drain - Grey

SKU: ww640-4347

Waterway Lo-Pro drain fitting - 3/4" socket - side entry - low profile design Cannot be used as a suction fitting for pumps ...

7 In Stock

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Waterway Low Profile Spa Drain Assembly 3/4" S x 1" Spg

SKU: ww640-0407

Add a drain fitting to your spa for maximum drainage 3/4" socket, 1" spigot hose/pipe connections Install in spa floor or footwell wall Drill hole size - 32mm ...

18 In Stock

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Waterway Manifold Wye 2.5" x 2.5" x 2.5"

SKU: ww672-8050

...

21 In Stock

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Waterway Mini Storm Jet Body 3/4"SB x 3/8"B

SKU: ww212-0330

SPECIAL Waterway Mini Storm Jet Body - smooth barbed version. 55mm hole required 3/4" Smooth Barb water x 3/8" barb air hose connection....

317 In Stock

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Waterway Mini Storm Jet Body 3/4"SB x 3/8"B - Bulk Buy - BOX OF 20 JET BODIES

SKU: ww212-0330-20

SPECIAL Bulk Buy - BOX of 20 Jet Bodies Waterway Mini Storm jet body smooth barbs for water and air Fits 55mm hole Discounted due to overstock - while stocks last ...

15 In Stock

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Waterway Plastics 0.5" Neoperl Check Valve / Automatic Air Venturi Valve

SKU: ww670-2270

Waterway 1/2" Neoperl Check Valve / Automatic air venturi 15mm / 0.5" socket 20mm / 0.75" spigot one way spring loaded check valve. Intake through open end with foam insert. Uses: 1. 'Under spa'...

1 In Stock

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Waterway Plastics 120 Degree Wye 1.5" x 1" x 1" Sockets

SKU: ww413-4130

Waterway Plastics reducing 120 degree Wye fitting. 1.5" / 40mm socket x 1" / 25mm socket x 1" / 25mm socket ...

48 In Stock

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Waterway Plastics 2.5" Sliding Gate Push Pull Slice Valve & locking clip

SKU: ww880-2500

Waterway 2.5" slice valve - suits large 2.5" pipe used on swimjet systems 2/5" socket x 2.5" spigot - spigot end slips into 2.5" pump unions or fittings...

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Waterway Plastics 40mm / 1.5" Barrel Union

SKU: ww400-3090

Waterway Plastics PVC 1.5" / 40mm threaded barrel union...

3 In Stock

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Waterway Power Storm Jet Body 3/4" Socket x3/8" SB - Snap in style

SKU: ww212-0020

SPECIAL 95mm hole size required 3/4" socket x 3/8" hose connection. Snap in style ...

218 In Stock

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Waterway Top Access 2" Diverter - Elite 5 Scallop - Grey

SKU: ww600-3047

Waterway plastics 2" Diverter Valve 5 point textured Spa lip mounted 2" 3 way diverter valve to control water flow to spa jet regions/manifolds within the spa from the one pump. 2" / 50mm socket conne...

7 In Stock

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Waterway Top Access 2" Diverter Repair Kit - Elite 5 Scallop - Grey

SKU: ww600-3047-R-K

Waterway plastics 2" Diverter Valve repair kit 5 point textured (Suits valves with buttress threads only - 'BUTTRESS' embossed on underside of the original cap.) Includes all internal components: Ca...

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Waterway Top Access HORIZONTAL 2" Diverter - Elite 5 Scallop - Sterling Silver

SKU: ww600-3029-sts

New Sterling Silver colour - replaces both white and grey versions Spa lip or wall mounted 2" 3 way diverter valve to control water flow to spa jet regions/manifolds within the spa from the one pump. 2" ...

5 In Stock

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Waterway Tru-Seal 2 way valve 2"S x 2.5"Spg

SKU: ww600-7060-pvc

Waterway Tru-Seal high quality 2 way isolation / flow control valve - also suits electric valve actuators 2" / 50mm socket x 2.5" spigot - comes with clip in port ID tags to allow easy pipe setination ID...

2 In Stock

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